n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | 0 |
4 | -1 |
5 | -1 |
6 | 2 |
7 | 1 |
8 | -1 |
9 | -7 |
10 | -37 |
11 | 368 |
12 | 4981 |
13 | -9383 |
14 | -1129837 |
15 | 461 |
16 | 27108469 |
17 | 68690009 |
18 | -981587473 |
19 | -23749507 |
20 | 31685207789 |
21 | 231197062 |
22 | -394010311399 |
23 | -16467167272 |
24 | -39133970611597 |
25 | 424044941703263 |
26 | 169016775569984281 |
27 | -29438912370551 |
[1,-1,1,0,-1,-1,2,1,-1,-7,-37,368,4981,-9383, -1129837,461,27108469,68690009,-981587473, -23749507,31685207789,231197062,-394010311399, -16467167272,-39133970611597,424044941703263, 169016775569984281,-29438912370551] |